Bracket for tractor hoists



Patented Nov. 4, 1930 "ATE'NT; F ICE SIDNEY B. GORBUTT, OF PORTLAND, OREGON, ASSIGNOR, BY TVIESNE ASSIGNMENTS, TO

WILLAMEmrE-nnsmn COMPANY, or roRrLANn'oR eoiv BRACKET ronrnaoren riorsrsi n Application filed December 10,1328. Serial No. 324,824. I i

Thisinvention relates generally to cable Winding hoists applied to tractors, and particularly to a special form of bracket for attaching ahoist to a tractor.

v The main object of this invention is to make it possibleto mount a cable Winding hoist-on V a popular form of track laying tractor Without the necessity of drilling any holes or do-v ing any machine Work aside'from the loosening and tightening of bolts. p

The second object is to make it possible to save a large portion of the time ordinarily required to mount a hoist on this form of tractor. a I V The third'object is to render it unnecessary toremove any of theexisting parts or the replacing thereof, other than the removal of a racket for a clutch operating lever. i

The fourth obpect is to so construct the bracket as to secure an improved bracing action from the parts Which Will provide a maximum amount of strength for a given I weight and quality of materials employed.

The fifth object is to so arrange the parts that strains imposed upon the hoist Will not be transmitted to any portion of the tractor, which is unable to Withstand such strains for the reason that they Were not designed for this purpose, and to actually transmit all of said strains to naturally strong and advantagepuslypositioned elements of the tractor itsel f These, and other objects, will become more apparent from the specification following as illustrated in the accompanying drawing, in Which: t

Figure 1 is aside elevation of a representative form of hoist and a portion of a tractor showing the relation of-the hoist thereto 49 andthe position of the bracket. 'Figure 2 isa. plan of Figure 1. Figure 3is an elevation ofthe bracket from the operators' seat. Figure 4 is a section through the bracket taken along the'line 44 in Figure? I Similar numbers of reference refer to similar'parts throughout the severalvievvs.

Referring in detail to the drawing, thereis shown-a transmission caserlO of a tractor to Whose axle 11 is attached a platform 12'by means of the clamps 13.. On the platform 12,

which is hinged on the axle-11, is mounted the hoist which includes theside frames 14, drums 15 and 16 and-cross ties 17 At the to'pof each, frame 141s formed an eye 18, adapted to rcceive the brace rod 19 toyWhich-it is secured by means of thenuts 20. The; holes in the eye 18 slope in a manner to permit the rods 19 to converge and incline downvvardlyto- Ward the bracket 21, Which 'consistsofan arched member Whose central portion 22 is preferably of a hollow I cross I section, and

Whose ends 23 are provided With openings 24 to receive the-rods '19 and tobe attached thereto by means of the nuts 25.

It Will be noted that thejholes 24 are considerably below the top portion of the member 21 and arein a horizontal plane between the bolt holes 26 through Which pass the'bolts 27 which secure the bracket 21-in position against the face 28 of the transmission case 10. The bolts 27 were formerlyemployed to hold a small bracket for the clutch throwv out lever 29, but this-bracketis nowsubstitute'd by the forked arms 30 Which are formed integral with the bracket 21. The side of: the

bracket 21' adjacent to the face 28 and'in the neighborhood of the bolt holes, 26, is provided, with a raised pad 31 Which is machined to provide the proper contacting'surface. The under side 32 of the bracket 21 is"curved to. 'conformWith theupper side of the transmis- When installingthis device it is only necessary to remove the bracket for the clutch throw-out lever "29, above referred to, of Whichthereis only one, its'posi'tion onthe tractor depending upon the manner in which the tractor'is equipped, sometimes being on the right side and sometimes on the left, holes being provided in the face 28 on eachside of the tractor center line. 7 The bracket 21 is nowpla'ccd in position and-secured b'y' means of thebolts 27.1 The hoisthavirigberi mounted" on the platform12xnoW has its'upper portiontied to the bracket 21 by means of the rods 19, which. take ,up any pull on s the lines 33' and 34and hold the faces 35 of the frames 14 against the face 36 of the tran mission case; 10. This-prevents any sudden slackening of the lines and 34 from pla eing the rods 19 in compression in case they were so secured to the bracket 21 as to prevent their sliding therein, as is the case when constructed as shown in the drawing.

It will also be noted that the line of pull on the cables 33 and 34 conforms generally to the angle of the rods 19 and that the an chorage for the rods 19 within the holes at is directly in line with the areas 31, thereby eliminating any canting action which would place the bolts 27 in tension.

By providing two sets of arms 30, one on each side of the bracket center line, the lever 29 may of course be moved to either position desired. 7 1

I am, of course, aware that many forms'of devices have been constructed for the purpose of attaching a hoist to a tractor; I therefore do not claim such devices broadly, but I do intend to cover all such forms and modificationsthereof as fall fairly within the appended claims.

I claim:

1. In a tractor hoist the combination of a transmission casing, a hoist having a pair of spaced side frames, means for hinging the lower portion of said side frames to a tractor axle, said frames having tie rod fastenings formed near the upper end thereof, one side of said hoist bearing against an end of the transmission case, an anchor bracket bolted against the opposite end of the transmission case, tie rods joining said anchor bracket to said hoist in a manner to clamp the transmission case between same, the junction of said tie rods and anchor bracket being nearer I to each other than are the tie rod fastenings on said hoist, as well as in a lower horizontal plane than are said tie rod fastenings on said hoist.

2. In a tractor hoist, the combination of a transmission casing, a hoist frame having its end hinged to a tractor axle and its upper end provided with a pair of laterally spaced eyes for the reception of tie rods, an anchor bracket bolted against the opposite end of said transmission case, and having tie rod eyes formed in the ends thereof below and nearer together than are the eyes in said hoist frame, said anchor bracket having a hollow arched center.

3. A cable winding mechanism having in combination a tractor having an upright rear end for its transmission case, a hoist hinged at its lower end to the rear axle of the tractor, said hoist having one side engaging the upright side of the transmission case, an arcuate transverse bracket on the front side of the'transmission case, and tie rods, between said bracket and the upper portion of said hoist.

SIDNEY B. GOBBUTTQ 

